STRUCTURE, FORM AND CONSTRUCTION

  • YEAR
    2014
  • AUTHORS
    Pedreschi, Remo
    Lee, Daniel S.H.
  • CATEGORIES
    2014 Conference Papers
    Construction, Materials and Technology

Extract

This paper presents a summary of some recent research into optimised structural forms for concrete beams and columns, con-structed using flexible woven fabrics as formwork. Fabric formwork is efficient in materials usage, improves the quality of the concrete and enables complex geometries that would otherwise be expensive to construct using rigid formwork. The paper provides a brief overview of the use of flexible formwork and presents summaries of two recent studies of structural elements: the development of a form-active effi-cient beam and a study of non-prismatic columns under axial load. The study of the beam indicated that the embodied energy could be reduced by over 30% when compared to an equivalent rectangular beam. The strength of columns is influenced considerably by shape with significant increase or decrease in strength with non-prismatic shapes compared to cylindrical prismatic columns with the same total volume of concrete. In both cases the complex three-dimensional shapes were simple and economic to construct.

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